I have two sites one on line and the other on my computer. the one on my computer its Uri mapping is OK. the other I get a 404 and a 500. my hosting site upgraded to, php 5 and have posted this statement. users are not able to have php flags in their .htaccess file. Having php flags in .htaccess files is a common cause of internal server errors on servers with phpSuExec enabled. One way around this is to create a custom php.ini
could this be casing my problem? if so how do I get a round it.